First Mortgage Payment

Hi guys

I just wanted to ask a quick question, i've had search about first mortgage payments before, but i wanted to see if i could get a definitive answer.

I'm in the early stages of the housing process (offer accepted, solictors doing there thing, mortgage application accepted with Nationwide)

I know one of the confusing things i've found is information about the first mortgage payment.

Due to the way i get paid my mortgage payment date will be the 15th of each month.

Am i right in thinking, i need to get my completion date as close to my payment as possible so i don't incur much interest on my first payment?

Thanks in advance for any answers and advice